Earlier quoted context omitted.
Holy shit that link you shared was so frustrating to read. To think of all the productive things a great intellectual like Chomsky could be doing with his time. Instead he generously chose to engage someone who had already made their conclusion and just wanted to "debate" without actually ceding to any points (take a shot any time OP says "liberal" or "PC"). He even hints at OP's "intentional ignorance" many times to…
That's why whenever I speak to someone and they have a strong opinion I like to ask them how many books they've read on that subject. It's almost always zero. You can pretty much instantly discard anyone like that as it's a decent baseline litmus test. If you really cared about something, you would read at least one if not multiple books on the subject. Anything less is just laziness and someone who wants to get an e…
I'm not sure how true that is anymore. If by "book" you mean "monothematic long-form treatise by a small number of authors" then I have read essentially zero books in the past year, although I have done a great deal of reading otherwise. Research papers, magazines, blog posts, Wikipedia articles, cherry-picked single chapters of books can in aggregate absolutely stand in for a few books. And then there are sources of knowledge that go beyond reading, such as personal experience, original research, attending talks, etc.
I think your test would be more accurate if you asked more generally how they learned what they know about the matter.